Over at Wired, a deaf iPhone user explains precisely why AT&T’s decision to take a core feature of iOS 6 — FaceTime video chat over cellular data networks — and make it available only to those with a shared-mobile plan specifically harms the deaf by forcing them to pay a higher rate with no associated benefit. The same argument is valid for all subscribers, but has particular resonance for those who use sign language. follow link
Enter Dashboard, Expose, or Spaces Temporarily
Hold down F9, F10, F11, or F12 (or whatever you've set for the Expose and Spaces keyboard shortcuts) for a few seconds, and then release the key to enter and leave the appropriate mode without having to press the key again. This is particularly useful for Dashboard, in which you can check the contents of a widget and then return to your work with only a single key press.
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Deaf Deterred by AT&T’s FaceTime over Cellular Policy